Slip-joint coupling



May 3, 1927.

P. MUELLER. ET Ax.

SLIP JOINT COUPLING Filed July 21. 1920 .Zzvenorsf Patented May 3, 1927.

UNITED STATES PATENT oi-EleaN reunir MUELLERAND ANTON c. soHUnRMANN, or nEcATun, runners, AssrGNoRs To ADOLPH MUnLLnn, TRUSTEE, or encarna' Immers.`

SLlP-JOINT Application flied July 21,

This invention relates to pipe couplings,

more particularlyto pipe couplings of theings' the same is illustrated as applied to a drinking fountain and as connecting together the waste pipe sections.

In these drawings,

Fig. 1 is a fragmentary vertical sectional view of a drinking fountain,

Fig. 2 is a view similar to Figure 1, show ing the sections of the waste pipe disconnected, and v Fig. 3 is a top plan view of the coupling member.

In these drawings, wherein similar numerals` represent corresponding parts throughout, 10 indicates a hollow pedestal adapted to be supported upon a floor or other foundation and having extending therethrough a supply pipe 11 surrounded by a waste pipe 12. The waste pipe is eX- teriorly screw threaded at its upper end, as at 13, and has secured thereto a cap nut 14 extending beyond vthe end of the waste pipe and provided with an interiorly disposed recess formed by two spaced interiorly extending ribs 15, 15. In the recess between the ribs is disposed a packing element 1G normally extending into the bore of a coupling member and adapted to frictionally engage the bowl waste pipe section 17 which telescopes into the waste pipe 12 and the coupling member 14.

The coupling member 14 is formed exteriorly with a projecting flange 1S in which are formed openings through which may be passed clamping screws 19 which press upon a pedestal clamping plate 2O supported upon interiorly projecting lugs 21 formed upon the pedestal. Obviously other forms of clamping elements than the screws 19 could be employed, and moreover, it is clear that instead of forming the cap nut with the flange 1S, the same could be suitably formed to receive any clamping means selected.

The bowl waste pipe section is formed at its upper end with an enlargement 22 adapted to receive the ends of screws 23 which also serve to secure the bowl strainer plate CO'UPLING.

1920. Serial 110.3972524.

Q4 to the howl 2.5 above the waste opening 26 therein. fr gasket 2T may be placed between the bowl 25 and the bowl waste pipe section 1T in `order to form a liuid tight joint.

To the upper screw tl'ireaded end of the supply pipe 11 is secured the supply pipe Asection 1l extending upwardly through the strainer plate and having secured to its upper end the usual. bubbler head (not shown).

In1 assembling the structure yto which the iu'rproved coupling is` shown. as applied, the pedestal is first placed upon its foundation around the supply and waste pipes, and the clamping plate 2() is slipped karound the waste pipe and upon its supportingv lugs 21. The cap nut or coupling member 14 is then placed upon the end of the waste pipe, whereupon the clamping screws may be adjusted to press upon the clamping plate and thus tixedly secure the pedestal in position. After the supply pipe section 11 has been secured to its complemeutal section 11 the bowl may be placed in the position shown in Figure 2 and then lowered to its final position y shown in Figure l, wherein the bowl rests upon the upper end of the pedestal and the bowl waste section 17 telescopes the coupling member 14 and the waste pipe 12.

It should be clear that this type of slip joint coupling is particularly useful in connection with drinking fountains, to which we have shown and described it as applied, but it should, of course, be understood that the same is of general application and such v modifications may be made therein as come within the scope of the following claims.

What we claim is:

1. 'Ihe combination with a pipe to be coupled having an exteriorly threaded end, y of a correspondingly interiorly threaded coupling connected to .said pipe, a recess in said coupling, an interior-ly projecting packing seated in said recess, a `clamping plate encircling said pipe, a second pipe telescoping said first mentioned pipe and in frictional engagement with said packing, a flange projecting outwardly from said coupling having a plurality of openings therein, and means extending through said openings for maintaining the clamping plate in position. f

2. The combination with a drinking fountain pedestal, of a pipe traversing said pedestal havingr an exteriorly 'threaded upper end, a correspondingly interiorly threaded coupling connected to said pipe, a recess in said coupling, an interiorly projecting packing seated in said recess, a second pipe telescopin` said iii-st mentioned pipe and in :lrictional engagement with said packing'. a flange projectingoutwardly from said eonpling. a clamping plate, means on the inner wall. ot' said pedestal tor snjniorting` said plat-e, and means adjnstably secured to said flange for clampin-gl the plate to said pedestal.

3. A pipe coupling" comprisingf a tubular body having' an interiorly threaded seetiom an interior annular recess beyond one end ot' said threaded section, and an exterior radially extending projection7 a flexible jiacking seated in said recess and projecting therefrom into the body, and means connected With said exterior projection and adapted to engage a relatively stationary abutment.

4;. A pipe coupling comprising a tulnilar body having an interiorly threaded section, 25

therefrom into the body. and a plurality oit 30 screws extendingl through and havingl threaded engagement with said exterior proj eetion.

5. A pipe coupling` comprisingq a sleevelike member adapted to be engaged with a pipe and having)- an outwardly projecting flange ot substantially triangular form in a plane transverse to the pipe axis. the inner periphery oit said couplingv member having an annular recess formed therein` a flexible )ackinfr in said recess. and means su) ort- 4l) h ed by said flange for clampingr the coupling to a relatively stationary member.

In testimony whereof We have hereunto set our hands.

PHHP MUELLER. ANTON C. SCHUERMANN. 

